<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>变形动画</title>
	</head>
	<body>
		<svg xmlns="http://www.w3.org/2000/svg" width="400" height="400">
			<g>
				<circle cx="100" cy="100" r="30" fill="blue" stroke="yellow" stroke-width="1">
					<animateTransform attributeName="transform" begin="0s" from="1" to="2" dur="3s" type="scale" repeatCount="indefinite" />
				</circle>
			</g>
		</svg>
	</body>
</html>